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Old 02-28-2020, 06:57 AM   #1
F12rich
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Impact 332

I have an Impact 332. Does anyone use a Hensley hitch? Was thinking of getting one.
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Old 02-28-2020, 07:32 AM   #2
chuckster57
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They are HEAVY!! Make sure it doesnít use up all your carrying capacity. IMO there are W/D sway hitches that do just as good for a LOT less money. Equalizer 4pt comes to mind.
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Old 02-28-2020, 08:09 AM   #3
flybouy
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Quote:
Originally Posted by F12rich View Post
I have an Impact 332. Does anyone use a Hensley hitch? Was thinking of getting one.
What are you towing and what are you towing it with?
Edit: What year impact 332?
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Old 02-28-2020, 08:36 AM   #4
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Its a 2019 Impact 332, towing with a Ram 2500 diesel.
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Old 02-28-2020, 09:04 AM   #5
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That's a little heavier than my 303TG but you should be OK with any good 4 point sway control WD hitch providing your truck has the capacity to carry the hitch weight.

I use the Reese "straight line" hitch that I had when I bought the 303TG and it works great. Our trailer is "hitch heavy" as the FW tank is forward and most of the storage is in the front bedroom and of course the pass thru. One purchase I made that was well worth the money IMHO was a Sherline LM 1000 Trailer Tongue Weight Scale. I can set it up while loading up and know EXACTLY what my hitch weight is without a visit to the scales. I know the weight of the trailer (from a Cat Scales visit) loaded with the "always take stuff" ie. cookware, blankets, clothing, ect. So I have a "base line" of the trailer wt. and hitch wt and what % the hitch is. We rarely pack a lot of extras for a long trip and that weight is typically food (which is pretty much over the axless) and maybe a couple of coats & sweaters which I'll place on the couch or dinette during travel. When ready to go a check on the hitch scale confirms the loading or confirms that I need to redistribute a few items. This has worked for me for the last 10 years. YMMV
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Old 02-28-2020, 10:06 AM   #6
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This post was made using the Impact 351 specs. The 351 is significantly heavier than the 332. I will leave this post for anyone considering the 351 and will repost with the 332 information. Obviously, with the trailer nearly 4000 pounds lighter, the outcome will be "dramatically different"....

Looking at the specs, a 351 fifth wheel will significantly overload any diesel 250/2500 truck.

The trailer GVW is 17,000 pounds with a empty pin weight of 2900. Add 31propane/batteries and the pin weight will approach 3100 pounds for the "empty trailer" (no cargo, camping gear, etc). A suitable fifth wheel hitch will add 150-200 pounds for an empty trailer pin load of around 3200 pounds (before any cargo/camping gear).

The charts for the 2017 RAM towing indicate this info:

Max trailer towing with the "base automatic transmission" is 16,140
Max trailer towing with the "Asian transmission" is 17,140
Those weights include 300 pounds for passengers and 100 pounds for "other cargo".
https://www.ramtrucks.com/assets/tow...ing_charts.pdf

So, depending on how your truck is equipped (hitch receiver, transmission, added equipment over 100 pounds) you will probably be "in the overloaded category" on pin load/truck payload.

Adding cargo to the truck reduces "max trailer capacity" so, at truck GVW, you won't be able to tow the full 16,140 or 17,140 pound trailer capacity.

GCWR is the "combined weight" of the truck and trailer. As an example,

TRUCK GCWR 25,300
Truck GVW 10,000
Trailer GVW 17,000

With a truck weight of 10,000 the maximum trailer weight is 15,300
With a truck weight of 8500, the maximum trailer weight is 16,800
So, the "17,140 Maximum Trailer weight" is "only under ideal conditions related to passenger/cargo loading"...

In other words, depending on what you have in the truck, every pound added to the truck reduces the maximum trailer capacity by that same pound.

So, even though you might be able to "rearrange numbers to get it to look OK on paper" you really need to take the "whole picture" and "ALL THE RATINGS" of the truck, trailer, hitch, hitch receiver, transmission and anticipated cargo into account before selecting any hitch/trailer/truck when towing that much weight.
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Old 02-28-2020, 10:50 AM   #7
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John, Where are you getting your trailer numbers? I get 13K for the trailer 9646 empty + 3354 carrying capacity = 13,000.
https://www.keystonerv.com/toy-haule...32-toy-hauler/
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Old 02-28-2020, 11:05 AM   #8
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Quote:
Originally Posted by flybouy View Post
John, Where are you getting your trailer numbers? I get 13K for the trailer 9646 empty + 3354 carrying capacity = 13,000.
https://www.keystonerv.com/toy-haule...32-toy-hauler/
OOPS !!! I went to the Impact Specs, clicked on the "2019 specs" and scrolled right to the 332. THEN: I scrolled right one more to the 351.... My mistake. I'll try harder in the future (not to post before my second cup of coffee)…
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Old 02-28-2020, 11:34 AM   #9
flybouy
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Clickitis happens to me all the time John!
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Old 02-28-2020, 11:51 AM   #10
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The trailer GVW is 13,000 pounds with a empty tongue weight of 1560. Add propane/batteries and the tongue weight will approach 1700 pounds for the "empty trailer" (no cargo, camping gear, etc). A Hensley hitch weighs approximately 200 pounds (added to the trailer tongue weight) for an empty trailer tongue load of around 1900-2000 pounds (before any cargo/camping gear).

The charts for the 2017 RAM towing indicate this info:

Max trailer towing with the "base automatic transmission" is 16,140
Max trailer towing with the "Asian transmission" is 17,140
Those weights include 300 pounds for passengers and 100 pounds for "other cargo".
https://www.ramtrucks.com/assets/tow...ing_charts.pdf

The "max tongue load" for a CAT V XD (2") is 2400/2550
The "max tongue load for a CAT V CD (2.5") is 2700
https://www.curtmfg.com/types-trailer-hitches

Your truck PAYLOAD is probably around 2200 pounds (passengers, cargo, trailer tongue load plus the hitch weight). So with a trailer tongue weighing "close to or over 2000 pounds, when you add passengers, cargo in the truck bed/truck cab and any other additional equipment installed on the truck like a bed cover, tonneau cover, tool box, or other optional things, depending on how your truck is equipped (hitch receiver, transmission, added equipment over 100 pounds) you may already be "in the overloaded category" on tongue load/truck payload.

Adding cargo to the truck reduces "max trailer capacity" so, at truck GVW, you won't be able to tow the full "max trailer capacity" of 16,140 or 17,140 pounds.

GCWR is the "combined weight" of the truck and trailer. As an example,

TRUCK GCWR 25,300
Truck GVW 10,000
Trailer GVW 17,000

With a truck weight of 10,000 the maximum trailer weight is 15,300
With a truck weight of 8500, the maximum trailer weight is 16,800
So, the "17,140 Maximum Trailer weight" is "only under ideal conditions related to passenger/cargo loading"...

In other words, depending on what you have in the truck, every pound added to the truck reduces the maximum trailer capacity by that same pound.

Where I think you need to "pay close attention" is with the hitch receiver rating (CAT V XD vs CAT V CD). There's a potential that with close to 2000 pounds on the truck receiver (with an empty trailer) that you could, in some loading situations, exceed the CAT V XD rating. This could more easily happen when the trailer garage is empty because there is no "off-setting weight" to counter the heavy tongue weight.

Your truck, with either the "base or the Asian transmission" will probably be within limits for towing capacity (max trailer/max GCWR). I think you'd probably be OK with tongue weight with a CAT V CD hitch (2.5" receiver) you may be over the max tongue load with a CAT V XD hitch (2" receiver) in some load configurations AND you may be "over the max payload" of the truck which is probably lower than the tongue weight of the trailer (when a Hensley hitch is added to the weight).
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